Fingerprint .. about how to use it and know its features

Fingerprint .. about how to use it and know its features

A fingerprint is the impression that friction bumps make on a human finger. Retrieving partial fingerprints from a crime scene is an important method in forensic science.

The moisture and grease on the finger cause fingerprints to appear on surfaces such as glass or metal. Intentional impressions of entire fingerprints can be obtained by ink or other materials transferred from the friction-free edges of the skin to a smooth surface such as paper.

Fingerprint records usually contain impressions from the plate on the last joint of the fingers and thumb, although finger cards usually also record portions of the lower joint areas of the fingers.

Human fingerprints are detailed, nearly unique, difficult to alter, and durable over an individual’s lifetime, making them suitable as long-term markers of human identity.

They may be employed by the police or other authorities to identify individuals who wish to conceal their identity, or to identify incapable or deceased persons and thus unable to identify them, as is the case in the aftermath of a natural disaster.

Live Scanning Devices

3D fingerprint

The acquisition of the fingerprint image is the most important step in the automatic fingerprint authentication system, as it determines the quality of the final fingerprint image, which greatly affects the overall performance of the system. There are different types of fingerprint readers on the market, but the basic idea behind each of them is to measure the physical difference between bumps and valleys.

Discover the fingerprint device in the world

The Chinese were the first to discover this phenomenon 2000 years ago, when emperors were signing important documents with their thumbprints, and in 1877 Henry Foulds invented a method for photographing fingerprints on paper using black printing ink. But the English scientist Sir Francis Galton in 1892 was the first to show that there are no identical fingerprints.

He also confirmed that the fingerprint image of any finger remained the same throughout his life. In 1901, the famous investigation police in London, Scotland, applied a system to identify criminals through their fingerprints, and this system was developed by Sir Edward Henry with some modifications, which is the system applied by police departments in the world to this system. day.

Fingerprint .. about how to use it and know its features